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Title:
NON-DIRECTIONAL ELECTROMAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/196805
Kind Code:
A1
Abstract:
This non-directional electromagnetic steel sheet has a prescribed chemical composition, and when, upon observing by EBSD in a plane parallel to the steel sheet surface, the total area is represented by Ｓtot, the area of grains in the (411) orientation is represented by S411, the area of grains in the orientation in which the Taylor factor M is over 2.8 is represented by Styl, the total area of grains in the orientation in which the Taylor factor M is 2.8 or below is represented by Stra, the average KAM value of grains in the (411) orientation is represented by K411, and the average KAM value of grains in the orientation in which the Taylor factor M is over 2.8 is represented by Ktyl, satisfies the relationships 0.20 ≤ Styl/Stot ≤ 0.85, 0.05 ≤ S411/Stot ≤ 0.80, S411/Stra ≥ 0.50, and K411/Ktyl ≤ 0.990.

Inventors:
MURAKAWA TESSHU (JP)
Application Number:
PCT/JP2022/012735
Publication Date:
September 22, 2022
Filing Date:
March 18, 2022
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D8/12; C21D9/46; C22C38/00; C22C38/60; H01F1/147
Domestic Patent References:
WO2016148010A12016-09-22
WO2015199211A12015-12-30
Foreign References:
JP2011162821A2011-08-25
JP2013112853A2013-06-10
JP2021509154A2021-03-18
JP2006219692A2006-08-24
KR20120074394A2012-07-06
JP2021046056A2021-03-25
JP2017193754A2017-10-26
JP2011111658A2011-06-09
JP2018003049A2018-01-11
JPH08143960A1996-06-04
JP2002363713A2002-12-18
JP2011162821A2011-08-25
JP2013112853A2013-06-10
JP4029430B22008-01-09
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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